Dave Pegg (born 2 November 1947) is an English multi-instrumentalist and record producer, arguably most visible as a bass guitarist. He is the longest-serving member of the pre-eminent electric folk band Fairport Convention and has been bassist with a number of important folk and rock groups including The Ian Campbell Folk Group and Jethro Tull. He has appeared on some of the most significant albums of his era, as well as undertaking solo projects.